This article is from the Active Noise Control FAQ, by Dr. Chris Ruckman
Besides the FAQ you are now reading, there are several Internet resources dedicated solely to active control. Two of the best are the home pages for Digisonix and Causal Systems Limited, both of which contain plenty of technical detail for those who want more than this FAQ provides. These two excellent resources may be found at:
http://www.io.org/~causal/cs/csdir01.htm http://www.mailbag.com/users/dgsnx_mr
New since last time: http://www.mailbag.com/users/dgsnx_mr
Other URLs that at least mention active control:
http://www.elen.utah.edu:80/~douglas/EE620_Winter96.txt http://www.signal.se/ http://www.magi.com/~blairc/ancp.html http://cac.psu.edu/~lnl/aiaa96/aiaa96.html http://helmholtz.ecn.purdue.edu/OtherPages/Bernhard.html http://www.arl.psu.edu/general/expert1.html/ http://kirkof.psu.edu/cav/ http://www.fie.com/web/fed/nas/prog/naspgbmx.htm http://www.sm.luth.se/~gunnarh/ http://mecmac3.tm.chiba-u.ac.jp/documentation/movic/MOVIC96E.html http://baloo.dc.luth.se/depts/mt/ene/articles/rigg/A_cab.html http://www.larc.nasa.gov/tops/Exhibits/Ex_V-611/Ex_V-611.html http://leoleo.mme.tcd.ie/Groups/SAV/asanca.html http://www.mme.tcd.ie/~m.carley/Acoustics/acoustics.faq http://www.acs.psu.edu/Acoustics.html http://www.mech.kuleuven.ac.be/pma/annual93/2_11b.html http://sun-valley.stanford.edu/users/howjo/mace.html http://web.mit.edu/org/a/avlab/www/vl.home.html http://www.yahoo.com/Science/Acoustics http://www-gaus.gme.usherb.ca/axeact_a.html
Here are some other resources that deal with general acoustics and vibration topics:
* The Acoustics FAQ is now available, thanks to Andrew Silverman: http://www.mme.tcd.ie/~m.carley/Acoustics or, in the US, ftp://rtfm.mit.edu/pub/usenet/alt.sci.physics.acoustics/Acoustics_FAQ
* If you have access to USENET newsgroups, check out the following: news:alt.sci.physics.acoustics (general acoustics) news:comp.dsp (digital signal processing)
* Check out the new home page of the Acoustical Society of America: http://asa.aip.org
* Penn State University has an excellent acoustics home page: http://www.acs.psu.edu
* If you have access to e-mail, you can subscribe to the International Sound & Vibration Digest by sending e-mail to yanas@eng.auburn.edu.
 
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